--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/ModuleSummaryWriter.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 2013, 2016, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package jdk.javadoc.internal.doclets.toolkit;
+
+import jdk.javadoc.internal.doclets.toolkit.util.DocFileIOException;
+
+/**
+ * The interface for writing module summary output.
+ *
+ *  <p><b>This is NOT part of any supported API.
+ *  If you write code that depends on this, you do so at your own risk.
+ *  This code and its internal interfaces are subject to change or
+ *  deletion without notice.</b>
+ *
+ * @author Bhavesh Patel
+ */
+
+public interface ModuleSummaryWriter {
+
+    /**
+     * Get the header for the summary.
+     *
+     * @param heading module name.
+     * @return the header to be added to the content tree
+     */
+    public abstract Content getModuleHeader(String heading);
+
+    /**
+     * Get the header for the module content.
+     *
+     * @return a content tree for the module content header
+     */
+    public abstract Content getContentHeader();
+
+    /**
+     * Get the header for the summary header.
+     *
+     * @return a content tree with the summary header
+     */
+    public abstract Content getSummaryHeader();
+
+    /**
+     * Get the header for the summary tree.
+     *
+     * @param summaryContentTree the content tree.
+     * @return a content tree with the summary tree
+     */
+    public abstract Content getSummaryTree(Content summaryContentTree);
+
+    /**
+     * Adds the module description.
+     *
+     * @param moduleContentTree the content tree to which the module description
+     *                           will be added
+     */
+    public abstract void addModuleDescription(Content moduleContentTree);
+
+    /**
+     * Adds the tag information from the "module-info.java" file to the documentation
+     * tree.
+     *
+     * @param moduleContentTree the content tree to which the module tags will
+     *                           be added
+     */
+    public abstract void addModuleTags(Content moduleContentTree);
+
+    /**
+     * Adds the modules summary to the documentation tree.
+     *
+     * @param summaryContentTree the content tree to which the summary will be added
+     */
+    public abstract void addModulesSummary(Content summaryContentTree);
+
+    /**
+     * Adds the packages summary to the documentation tree.
+     *
+     * @param summaryContentTree the content tree to which the summary will be added
+     */
+    public abstract void addPackagesSummary(Content summaryContentTree);
+
+    /**
+     * Adds the services summary to the documentation tree.
+     *
+     * @param summaryContentTree the content tree to which the summary will be added
+     */
+    public abstract void addServicesSummary(Content summaryContentTree);
+
+    /**
+     * Adds the module content tree to the documentation tree.
+     *
+     * @param contentTree the tree to which the module content tree will be added
+     * @param moduleContentTree the content tree that will be added
+     */
+    public abstract void addModuleContent(Content contentTree, Content moduleContentTree);
+
+    /**
+     * Adds the footer to the documentation tree.
+     *
+     * @param contentTree the tree to which the footer will be added
+     */
+    public abstract void addModuleFooter(Content contentTree);
+
+    /**
+     * Print the module summary document.
+     *
+     * @param contentTree the content tree that will be printed
+     * @throws DocFileIOException if there is a problem while writing the document
+     */
+    public abstract void printDocument(Content contentTree) throws DocFileIOException;
+}